Mississippi Valley Structural Steel Co.

Jackson Street Bridge (Will County, Illinois)
Built 1932
Bascule bridge over Des Plaines River on Jackson Street in Joliet
Open to traffic

Jefferson Street Bridge (Will County, Illinois)
Built 1933
Through truss bascule bridge over Des Plaines River on Eastbound US 30 in Joliet
Open to two-lane traffic

McDonough Street Bridge (Will County, Illinois)
Built 1933
Bascule bridge over Des Plaines River on McDonough Street (US 6/52) in Joliet
Open to traffic